Question

A truck is bought at the price of $67,000. The price decreases at the rate of .30 every year (t). Which equation matches this exponential model?

Question 3 options:

A)

f(t) = 67(.70)t

B)

f(t) = 70(67,000)t

C)

f(t) = t(.70)67,000

D)

f(t) = 67,000(.70)t

Answer 1

f(t) = $67000(.30)^t (Must use " ^ " to indicate exponentiation)

Explanation:

This is an exponential function:

f(t) = $67000(.30)^t (Must use " ^ " to indicate exponentiation)